Terminology

DTD

DTDs

Document Type Definition, a method for specifying valid characteristics (elements and attributes) for an XML document.

IDE

Interactive Development Environment

namespace

Defines a context for identifiers

Schematron

XML-based schema language for rule-based validation

URI

Uniform Resource Identifier - globally unique identifier

UTF-8

Unicode encoding scheme using minimal required bytes for each code point

XML Catalog

An XML Catalog file is an XML file that maps URIs to physical files

XML-aware editor

An editor with programmed-in behavior to assist users in creating and editing XML documents.